3 years ago

ASTRONOMY HELP :

Physics

1 answer:

sergeinik [125]3 years ago

4 0

Answer:

5: False

4: True

3: True (I think)

Explanation:

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A group of runners complete a 26.2 mile marathon in 3.4 hours. The distance between the start and finish lines is 12.2 miles. Wh

NNADVOKAT [17]

26.2/3.4 would be the average velocity for the run.

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3 years ago

Read 2 more answers

A parked car's horn (belonging to a musician) emits a concert A of frequency 440 on a day when the speed of sound is 342 m/s. Yo

julsineya [31]

Answer:

19.08 m/s

Explanation:

f = actual frequency emitted by the parked car's horn = 440 Hz

V = speed of sound = 342 m/s

f' = frequency of the horn observed by you = 466 Hz

v = speed of your car moving towards the parked car = ?

frequency of the horn observed by you is given as

$f' = \frac{Vf}{V - v}$

$466 = \frac{(342)(440)}{342 - v}$

v = 19.08 m/s

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3 years ago

A group of cells working together make up a(n)

Neko [114]

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Molecules make up cells, cells make up tissue, tissue makes up organs, organs make up organ systems.

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3 years ago

Is -3 a solution to equation 3x -5 = 4+ 2x

Elodia [21]

Answer:

No!

Explanation:

The correct answer is x = 9.

5 0

3 years ago